I'm looking to get my water tested and Ward's Labs has a couple of options, W5A and W6:
"W5A Brewer's Test" - $42 kit/$27.35 test only
Sodium, Calcium, Magnesium, Potassium, Carbonate, Bicarbonate, Chloride, Iron, Sulfate, Nitrate, Electrical Conductivity, Est.Total Dissolved Solids, pH...